Cita APA

Enger, E., & Smith, B. (1995). Pollution and policy. McGraw-Hill.

Citación estilo Chicago

Enger, Eldon, and Bradley Smith. Pollution and Policy. Boston: McGraw-Hill, 1995.

Cita MLA

Enger, Eldon, and Bradley Smith. Pollution and Policy. McGraw-Hill, 1995.